"You're probably referring to Alberto Cerro Leon, a Pentjak Silat stylist from Spain that competed in UFC 2. He lost in the first round to Remco Pardoel, a 260 lb Dutch judoka. He didn't show much prowess in terms of standup & he was quickly thrown when he tried to hop on Remco's back, but on bottom he managed to hang in there for almost 10 min before he got choked out. Here's the vid: http://www.youtube.com/watch?v=IRbXRq2wgHk